[O061] 胃　出血4

[O061-2] Analysis of the risk of nighttime admission on upper gastrointestinal bleeding, A single tertiary hospital study

^○Koki Kawanishi, Nobuo Toda, Satoshi Kawamura, Yuki Karasawa, Yuki Hayata, Daisaku Ito, Mari Yamagami, Tomoharu Yamada, Koki Sato, Yasuhide Yamamoto, Kentaro Kojima, Takamasa Oki, Toshihiko Arizumi, Michiharu Seki, Kazumi Tagawa (Gastroenterology Department, Mitsui Memorial Hospital, Tokyo, Japan)